1
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

A constant voltage is applied between the two ends of a uniform metallic wire, Some heat is developed in it. The heat developed is halved if

A
both the length and the radius of the wire are halved
B
both the length and the radius of the wire are doubled.
C
The radius of the wire is doubled
D
The length of the wire is halved.
2
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

The wavelength of $$k_\alpha$$-line characteristic $$X$$-rays emitted by an element is $$0.32 \mathop A\limits^o$$. The wavelength of the $$k_\beta$$-line emitted by the same element will be

A
0.32 $$\mathop A\limits^o$$
B
0.39 $$\mathop A\limits^o $$
C
0.49 $$\mathop A\limits^o $$
D
0.27 $$\mathop A\limits^o$$
3
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

VITEEE 2023 Physics - Rotational Motion Question 3 English

A uniform cube of side $a$ and mass $m$ rests on a rough horizontal table. A horizontal force $F$ is applied normal to one of the faces at a point that is directly above the centre of the faces at a point that is directly above the centre of the face at a height 3a/4 above the base. The minimum value of F for which the cube begins to topple an edge is (assume that cube does not slide)

A
(mg)/3
B
(mg)/2
C
(2 mg)/3
D
(3 mg)/4
4
VITEEE 2023
MCQ (Single Correct Answer)
+1
-0

Susceptibility of ferromagnetic substance is

A
> 1
B
< 1
C
0
D
1
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